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MAHLON S. BRAKE, 0FV `NEWARK, NEW JERSEY. Letters Patent No. 61,328, dated January 22, 1867.

IMPROVED BARREL BUN GS.

To ALL WHOM 1T MAY ooNoER'N;

Be it known -that I, MAHLON S. DRAKE, of the'city of Newark, in the county of Essex, and State of New Jersey, have invented an improvement in Barrel Bungs and I do hereby declare the following to be n full and exact description of the stime, reference being had hereinto the drawings that accompany this s'peciczitiorn` and which make part of the same.

The nature of my improvement consists in a. peculiar vprovision for expanding the bung after insertion into the bung hole. In the drnwings- Figure 1 shows the various parts of the bung; and

Figure 2, the bung in a.' barrel stai-ve The same letters refer to the same parts in each.

The body of the bung is formell of metal, und is in two parts, A und B; thelprojec-tin z upon A, fitting und sliding in the hollow y, in the part B, being kept from turning therein by the pin 9:, which slides in the groove w, in B. A screw with n right and left thread, C, passing through both A and B, in which are corresponding threads, as shown by red lines, upon being turned, moves the two partsto or from each other at one and the same time. The screw C is turned by the insertion ofthe key D into the slot 2: in the upper end of the screw and twisting it by hond. A piece of prepared rubber, E, is plnecd betweenvthe two parts A und B. The hole in the rubber, shown by the dotted lines in'E, is ttcrfl to the conical-shaped metal bottom-piece B. The key is turned to separate the parte A. nndIB so far as to have no pressure upon the rubber; the bung is then' inserted, and upon turning the keytho other way so as'to drow together the ,parts A. and B, the drawing of the conical end of B into the rubber E expands the rubber and closes -the bung hole, both water and air-tight, and it cannot be blown out by e'erveseonco of the contents ot' the Cask. 'The pin u in the end of the screw C prevents the part B from being let loose from the screw so :is to fell into the eat-sk.

I claim as u new article of manufacture ol bung for barrels, casks, or coses,oonstructed substantially as speeied.

MAHLON S. DRAKE.,

Witnesses:

W. M. Genome, JOHN P. BRoons, 

